HomeSuspension > Suspension, Springs and Related ComponentsDorman 949-556 Air Spring to Coil Spring Conversion Kit - Front or Rear
Part #: 949-556

Dorman 949-556 Air Spring to Coil Spring Conversion Kit - Front or Rear

Front and Rear
⚙️ 92 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Cadillac, Oldsmobile, and Pontiac, 88, 98, Bonneville, Delta 88, DeVille, Fleetwood, LeSabre, and Park Avenue
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Reliable Air Spring to Coil Spring Conversion Kit for GM Luxury Sedans

The Dorman 949-556 Air Spring to Coil Spring Conversion Kit offers a durable suspension upgrade for select Buick, Cadillac, Oldsmobile, and Pontiac models. Designed to replace air springs with standard steel coil springs, this kit provides a straightforward solution for restoring suspension performance on vehicles like the Buick LeSabre and Cadillac DeVille.

  • Includes 2 front coilover struts, 2 rear struts, and 2 steel compression springs
  • Standard suspension grade components for consistent ride quality
  • Black steel springs with closed ends for durability and noise reduction
  • Rubber bushings in black for reliable vibration dampening
  • Compatible with Buick 88, 98, LeSabre, Pontiac Bonneville, Oldsmobile Delta 88, Cadillac DeVille, and Fleetwood

Durable Components Built for Suspension Stability

This conversion kit features steel compression springs finished in black, engineered with closed ends on both sides to minimize spring noise and enhance longevity. The rubber bushings provide effective vibration isolation, contributing to a smoother ride. The standard suspension grade ensures the kit meets typical driving demands without compromising vehicle handling. The included coilover struts replace air springs, simplifying maintenance and improving reliability for older GM luxury sedans.

Compatible Vehicles and Part Number Details

The Dorman 949-556 kit is specifically designed for air spring to coil spring conversion on Buick 88 and 98 models, Cadillac DeVille and Fleetwood, Oldsmobile Delta 88, Pontiac Bonneville, and Buick LeSabre. Using the correct part number 949-556 ensures proper fitment and performance for these vehicles, making it a practical choice for owners seeking to replace failing air suspension components with a standard coil spring setup.

Common Suspension Issues Addressed by This Kit

  • Air spring failure causing uneven ride height or sagging
  • Leaks or damage in air suspension components
  • Costly air compressor or air line repairs
  • Reduced suspension reliability due to aging air springs
  • Desire to simplify suspension maintenance with coil springs

Installation Notes and Tips

Installation of the Dorman 949-556 kit requires removal of the existing air springs and struts. It is recommended to have suspension components inspected for wear before installation. Proper torque specifications should be followed when mounting coil springs and struts. Alignment is advised after installation to ensure optimal handling and tire wear.

Quality Assurance and Warranty Information

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 949-556 conversion kit is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship. This ensures confidence in the durability and performance of the suspension upgrade.

BrandDorman
Part Number949-556
Bushing ColorBlack
Spring MaterialSteel
Suspension Grade TypeStandard
Spring ColorBlack
End 1 Spring TypeClosed
End 2 Spring TypeClosed
Bushing MaterialRubber
Spring TypeCompression
Package Contents2 front coilover struts; 2 rear struts; 2 springs

This part fits 92 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
1999BuickLeSabreFrontFour Wheel Kit
1999BuickLeSabreRearFour Wheel Kit
1999Oldsmobile88FrontFour Wheel Kit
1999Oldsmobile88RearFour Wheel Kit
1999PontiacBonnevilleFrontFour Wheel Kit
1999PontiacBonnevilleRearFour Wheel Kit
1998BuickLeSabreFrontFour Wheel Kit
1998BuickLeSabreRearFour Wheel Kit
1998Oldsmobile88FrontFour Wheel Kit
1998Oldsmobile88RearFour Wheel Kit
1998PontiacBonnevilleFrontFour Wheel Kit
1998PontiacBonnevilleRearFour Wheel Kit
1997BuickLeSabreFrontFour Wheel Kit
1997BuickLeSabreRearFour Wheel Kit
1997Oldsmobile88FrontFour Wheel Kit
1997Oldsmobile88RearFour Wheel Kit
1997PontiacBonnevilleFrontFour Wheel Kit
1997PontiacBonnevilleRearFour Wheel Kit
1996BuickLeSabreFrontFour Wheel Kit
1996BuickLeSabreRearFour Wheel Kit
1996BuickPark AvenueFrontFour Wheel Kit
1996BuickPark AvenueRearFour Wheel Kit
1996Oldsmobile88FrontFour Wheel Kit
1996Oldsmobile88RearFour Wheel Kit
1996Oldsmobile98FrontFour Wheel Kit
1996Oldsmobile98RearFour Wheel Kit
1996PontiacBonnevilleFrontFour Wheel Kit
1996PontiacBonnevilleRearFour Wheel Kit
1995BuickLeSabreFrontFour Wheel Kit
1995BuickLeSabreRearFour Wheel Kit
1995BuickPark AvenueFrontFour Wheel Kit
1995BuickPark AvenueRearFour Wheel Kit
1995Oldsmobile88FrontFour Wheel Kit
1995Oldsmobile88RearFour Wheel Kit
1995Oldsmobile98FrontFour Wheel Kit
1995Oldsmobile98RearFour Wheel Kit
1995PontiacBonnevilleFrontFour Wheel Kit
1995PontiacBonnevilleRearFour Wheel Kit
1994BuickLeSabreFrontFour Wheel Kit
1994BuickLeSabreRearFour Wheel Kit
1994BuickPark AvenueFrontFour Wheel Kit
1994BuickPark AvenueRearFour Wheel Kit
1994Oldsmobile88FrontFour Wheel Kit
1994Oldsmobile88RearFour Wheel Kit
1994Oldsmobile98FrontFour Wheel Kit
1994Oldsmobile98RearFour Wheel Kit
1994PontiacBonnevilleFrontFour Wheel Kit
1994PontiacBonnevilleRearFour Wheel Kit
1993BuickLeSabreFrontFour Wheel Kit
1993BuickLeSabreRearFour Wheel Kit
1993BuickPark AvenueFrontFour Wheel Kit
1993BuickPark AvenueRearFour Wheel Kit
1993CadillacDeVilleFrontFour Wheel Kit
1993CadillacDeVilleRearFour Wheel Kit
1993Oldsmobile88FrontFour Wheel Kit
1993Oldsmobile88RearFour Wheel Kit
1993Oldsmobile98FrontFour Wheel Kit
1993Oldsmobile98RearFour Wheel Kit
1993PontiacBonnevilleFrontFour Wheel Kit
1993PontiacBonnevilleRearFour Wheel Kit
1992BuickLeSabreFrontFour Wheel Kit
1992BuickLeSabreRearFour Wheel Kit
1992BuickPark AvenueFrontFour Wheel Kit
1992BuickPark AvenueRearFour Wheel Kit
1992CadillacDeVilleFrontFour Wheel Kit
1992CadillacDeVilleRearFour Wheel Kit
1992CadillacFleetwoodFWDFrontFour Wheel Kit
1992CadillacFleetwoodFWDRearFour Wheel Kit
1992Oldsmobile88FrontFour Wheel Kit
1992Oldsmobile88RearFour Wheel Kit
1992Oldsmobile98FrontFour Wheel Kit
1992Oldsmobile98RearFour Wheel Kit
1992PontiacBonnevilleFrontFour Wheel Kit
1992PontiacBonnevilleRearFour Wheel Kit
1991BuickLeSabreFrontFour Wheel Kit
1991BuickLeSabreRearFour Wheel Kit
1991BuickPark AvenueFrontFour Wheel Kit
1991BuickPark AvenueRearFour Wheel Kit
1991CadillacDeVilleFrontFour Wheel Kit
1991CadillacDeVilleRearFour Wheel Kit
1991CadillacFleetwoodFWDFrontFour Wheel Kit
1991CadillacFleetwoodFWDRearFour Wheel Kit
1991Oldsmobile98FrontFour Wheel Kit
1991Oldsmobile98RearFour Wheel Kit
1991OldsmobileDelta 88FrontFour Wheel Kit
1991OldsmobileDelta 88RearFour Wheel Kit
1991PontiacBonnevilleFrontFour Wheel Kit
1991PontiacBonnevilleRearFour Wheel Kit
1990CadillacFleetwoodFWDFrontFour Wheel Kit
1990CadillacFleetwoodFWDRearFour Wheel Kit
1990OldsmobileDelta 88FrontFour Wheel Kit
1990OldsmobileDelta 88RearFour Wheel Kit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.